Correct Answer : when an IF statement controls the execution of only one Transact-SQL statement
Explanation : Use the BEGIN and END statements anywhere a control-of-flow statement must execute a block of two or more Transact-SQL statements.
Correct Answer : Master
Explanation : The master database records all of the system level information for a SQL Server system.
Correct Answer : Model
Explanation : When a CREATE DATABASE statement is issued, the first part of the database is created by copying in the contents of the model database.
Correct Answer : Msdb
Explanation : The msdb database is used by SQL Server Agent for scheduling alerts and jobs, and recording operators.